linux-kernel - [PATCH v8 1/7] mtd: spi-nor: sst: fix BPn bits for the SST25VF064C

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Message-Id: <20201203162959.29589-2-michael@walle.cc>
Date:   Thu,  3 Dec 2020 17:29:53 +0100
From:   Michael Walle <michael@...le.cc>
To:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Michael Walle <michael@...le.cc>
Subject: [PATCH v8 1/7] mtd: spi-nor: sst: fix BPn bits for the SST25VF064C

This flash part actually has 4 block protection bits.

Please note, that this patch is just based on information of the
datasheet of the datasheet and wasn't tested.

Reported-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
Fixes: 3e0930f109e7 ("mtd: spi-nor: Rework the disabling of block write protection")
Signed-off-by: Michael Walle <michael@...le.cc>
Reviewed-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
---
changes since v7:
 - removed Cc: stable
 - added Fixes: tag
 - added note in commit message about not being tested on real hardware

changes since v6:
 - new patch

 drivers/mtd/spi-nor/sst.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/sst.c b/drivers/mtd/spi-nor/sst.c
index e0af6d25d573..0ab07624fb73 100644
--- a/drivers/mtd/spi-nor/sst.c
+++ b/drivers/mtd/spi-nor/sst.c
@@ -18,7 +18,8 @@ static const struct flash_info sst_parts[] = {
 			      SECT_4K | SST_WRITE) },
 	{ "sst25vf032b", INFO(0xbf254a, 0, 64 * 1024, 64,
 			      SECT_4K | SST_WRITE) },
-	{ "sst25vf064c", INFO(0xbf254b, 0, 64 * 1024, 128, SECT_4K) },
+	{ "sst25vf064c", INFO(0xbf254b, 0, 64 * 1024, 128,
+			      SECT_4K | SPI_NOR_4BIT_BP) },
 	{ "sst25wf512",  INFO(0xbf2501, 0, 64 * 1024,  1,
 			      SECT_4K | SST_WRITE) },
 	{ "sst25wf010",  INFO(0xbf2502, 0, 64 * 1024,  2,
-- 
2.20.1